Keyboard and Display Controller - 8279

UNIT IV

Chapter – 12

(e) Keyboard and Display Controller - 8279

Contents

12.1 Keyboard Interfacing  ….. May-12,18         Marks         5

12.2 Display Interfacing  …. Dec.-04,05, May-06,18 …. Marks 16

12.3 Features of 8279 … May-04,16, Dec.-13,14, ….  Marks 16

12.4 Pin Description

12.5 Block Diagram …. Dec.-09,11, 12, 13,15,17 …. May-11,13,16  … Marks 8

12.6 Operating Modes …. Dec.-16,  …. Marks 16

12.7 8279 Commands  …. Dec.-16, …. Marks 16

12.8 Interfacing 8279 in I/O Mapped I/O

12.9 Applications          May-05, 07, Dec.-17      Marks 8

12.10 Two Marks Questions with Answers

12.11 University Questions with Answers (Long Answered Questions)

We have seen that keyboard and display devices are the two main components of microprocessor based system. Using them user can give and receive information from the microprocessor based system. In this chapter we will discuss keyboard and display interfacing in detail and study the programmable keyboard/display interface, 8279.